Design considerations for novel 8/14 and comparison with conventional 8/6 and 8/10 switched reluctance machines

In this paper a comparative evaluation of three, four-phase, switched reluctance machines (SRMs) is presented. Configurations 8/6 and 8/10 are conventional SRMs with standard relationship between number of stator and rotor poles. Configuration 8/14 has number of rotor poles calculated according to the new pole design formula introduced recently. Design considerations for novel SRM 8/14 are given. Static characteristics of SRM 8/6, SRM 8/10 and SRM 8/14 are investigated using finite element analysis (FEA). Comparison of these characteristics is given regarding several criterions for torque profiles evaluation and torque density assessment.